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Problems

14 problems

Has videoPremium onlyReset
DesignArray447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 14 results

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TitleSolutionAcceptDifficultyTopics
170. Two Sum III - Data structure designVideoPremium
Solution39.1%Easy
Array, Data Stream +3· 2 companies
225. Implement Stack using QueuesVideo
Solution70.1%Easy
Design, Queue +1· 9 companies
232. Implement Queue using StacksVideo
Solution70.2%Easy
Design, Queue +1· 12 companies
303. Range Sum Query - ImmutableVideo
Solution73.5%Easy
Array, Design +1· 8 companies
346. Moving Average from Data StreamVideoPremium
Solution80.2%Easy
Array, Data Stream +2· 11 companies
359. Logger Rate LimiterVideoPremium
Solution76.8%Easy
Data Stream, Design +1· 21 companies
604. Design Compressed String IteratorVideoPremium
Solution40.5%Easy
Array, Design +2· 1 company
703. Kth Largest Element in a StreamVideo
Solution61.4%Easy
Binary Search Tree, Binary Tree +4· 11 companies
705. Design HashSetVideo
Solution67.9%Easy
Array, Design +3· 6 companies
706. Design HashMapVideo
Solution66.5%Easy
Array, Design +3· 13 companies
933. Number of Recent CallsVideo
Solution78.9%Easy
Data Stream, Design +1· 9 companies
1603. Design Parking SystemVideo
Solution87.2%Easy
Counting, Design +1· 6 companies
1656. Design an Ordered StreamVideo
Solution82.6%Easy
Array, Data Stream +2· 3 companies
3242. Design Neighbor Sum ServiceVideo
Solution76.4%Easy
Array, Design +3
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